JPS62289324A - Coil inserting method onto rewinder - Google Patents

Abstract

PURPOSE:To improve the productivity to complete the pick finding work of a coil during the delivery of the preceding coil by transferring so that the coil inner diameter becomes parallel to the mandrel shaft core of a rewinder and inserting by transferring to the mandrel after performing a coil pick finding in the rewinding direction. CONSTITUTION:The coil 22 placed on a fixed skid 30 is transferred by a coil car 32 upto a cradle roll 36. The coil 22 placed on the cradle roll 36 is then driven with its rotation, the air cylinders 40, 42 of a coil pick finding device 26 are actuated and the pick finding is performed by sliding the tip of a guide table 38 on the peripheral face of the coil 22. The tip of the picked coil 22 is held by a magnet chuck 44, the lifter 34 of a coil car 32 is actuated to lift the coil 22 to the upper part and the coil car 32 is moved toward a rewinder 20. In this case with the actuation of the lifter 34 the inner bore hole of the coil 22 is lifted until its conforming to a mandrel 21 and inserted into the mandrel 21.

Description

[Detailed description of the invention]

3. Detailed description of the invention

[Industrial application field]

The present invention relates to a method for inserting a coil into an unwinding machine at the entrance of a continuous processing line for metal strip, and in particular, it relates to a method for inserting a coil into an unwinding machine at the entrance of a continuous processing line, and in particular, equipment that continuously processes metal strip while unwinding it from a coiled state into a strip, such as pickling equipment in steel manufacturing, rolling equipment, etc. The present invention is directed to an improvement in a method for inserting a coil into an unwinding machine at the entrance of a continuous processing line for metal strips, which is suitable for implementation in processing equipment.

[Conventional technology]

Conventionally, continuous processing lines for metal strips such as thin steel strips have been described in, for example, "Recent Advances in Cold Strip Equipment and Manufacturing Technology in Japan" (edited by the Japan Iron and Steel Institute, published August 20, 1978, No. 26). As disclosed in
The entrance side is equipped with coil conveyance equipment, a coil opener for unwinding the coil, an unwinding machine, and the like. As a typical example of this entry side equipment, a tandem mill is shown in Fig. 5. In FIG. 5, reference numeral 1 indicates a coil. Further, reference numeral 2 indicates a coil conveyor that conveys the coil 1 to near the unwinding machines 38 and 3B. Said rewind 1ff
Coil 1 is conveyed to 3A and 3B by coil cars 4A and 4B. The coil 1 conveyed by the coil cars 4A, 4B is unwound in the unwinding racks 3A, 3B, cold rolled by the tandem mill 4, and the rolled strip is wound up by the winder 6. In addition, the code|symbol 7 in a figure shows the scale hanging machine which measures ff1ffi of the wound coil, and 8 shows a coil binding machine which binds a coil. Conventionally, it was customary to install one unwinding machine, but when unwinding the coil, the tip of the coil is slightly unwound and the opening is left open for a long time, so it has become popular in recent years in high production. In the sex line, as shown in FIG. 5, rewind 13A,
There are many cases where two 3B units are provided. In this way, when two unwinding machines 113A and 3B are provided, while the first unwinding machine 3A is unwinding and rolling the M string, the second unwinding machine 3B is preparing for coil unwinding. The leading end of the coil is slightly unwound, and immediately after the first unwinding machine 3A completes unwinding, the second unwinding 13B performs unwinding and threading. As a result, the rewinding machine 1
It is possible to reduce the time loss due to the unwinding work performed by the base when unwinding the coil, and improve the processing efficiency of the equipment.

[Problems to be solved by the invention]

However, as mentioned above, in a continuous processing line for metal strips equipped with two unwinding machines, although it is possible to reduce the time loss required for unwinding and improve souvenir efficiency, compared to the conventional single unwinding system, There is a problem in that approximately twice as much equipment is required. Therefore, since two unwinding machines are provided, the area efficiency decreases and the equipment cost increases. Furthermore, 3 metal strips! I! In order to improve processing efficiency, adding another unwinding machine to a coil loading facility that previously consisted of one unwinding machine would be extremely difficult due to installation space constraints. There is a problem. By the way, in the case of conventional coil loading equipment equipped with one unwinding machine, the equipment arrangement is mainly of the two-scale type due to the difference in the coil transport form. Figures 6 and 7 show an example of this typical two-scale coil loading facility. The coil carrying equipment shown in FIG.
The coil car 10 transports the coil 1 in a direction perpendicular to the transport direction of the coil A and inserts the coil 1 into the mandrel 3C of the unwinding machine 3. Further, the coil carrying equipment shown in FIG. 7 includes a coil conveyor 9B composed of a walking beam, and a coil 1 carried by this coil conveyor 9B in a direction perpendicular to the carrying direction of the coil conveyor 9B. The coil car 10 inserts the coil 1 into the unwinding machine 3. However, the conventional coil loading equipment shown in FIG. 6 has a problem in that the coil 1 can only be unloaded within the unwinding machine 3. FIG. 8 shows a specific configuration of the unwinding machine 3 used in the coil loading equipment shown in FIG. 6. This unwinding machine 3 is equipped with a coil pick-up truss 11 whose tip slides into contact with the circumferential surface of a rotated coil 1 to slightly unwind the tip of the coil 1 and take it out. In a coil loading facility equipped with such a coil unwinding machine 11, the rear end of the preceding coil is discharged from the unwinding machine 3 (so-called bottom pulling), and then the next coil 1 is put into the unwinding machine 3. Insert the coil, first unwind the tip 1A of the coil 1 slightly using the coil unwinding button, and then,
The coil 1 is unwound. For this reason, if we take an existing processing line as an example, it takes about 180 seconds from the end of the preceding coil to the completion of threading the next coil, and the in-line processing time for one coil is 3.
In the case of 00 seconds, the ratio of the time from the end of the preceding coil to the completion of threading of the next coil to the in-line processing time (hereinafter referred to as loss time rate) is approximately 37.5%. In addition, in a coil loading facility equipped with two unwinding i3A and 3B units (see Figure 5), it takes about 110 seconds to remove the tail of the preceding coil and complete threading of the subsequent coil. The loss time rate is 26.8%. As described above, the conventional coil loading equipment shown in FIG. 6 has the problem that productivity is reduced because it takes a long time to finish threading the next coil after the preceding coil has passed through. Furthermore, in the conventional coil loading equipment shown in FIG. 7 mentioned above, the one shown in FIGS. 9 and 10 is used as the coil unwinding device 11 for pre-processing of unwinding. There is. The extraction device 11 shown in FIG. 9 is of the chisel magnet type, and includes a knife 12 that slides on the circumferential surface of the rotating coil 1 and guides the tip of the coil 1 to be slightly unwound. It is equipped with a magnetic chuck 13 that holds the tip of the coil taken out by the knife 12. The magnetic chuck 13 is guided by an air cylinder 14 for moving the magnet to a pinch roll or the like of a tandem mill (not shown). Further, the feed device 11 shown in FIG.
The coil 1 conveyed at step 5 is taken out by a snubber roll 16 and a take-out threading table 17, and the coil 1 taken out on this day is inserted onto a cradle roll 18 in an unwinding machine 3 by a coil car 19. According to this coil extraction device 11, extraction processing can be performed before inserting the coil 1 into the rewinding machine 3. In this way, in the coil loading equipment that performs the unwinding process before being inserted into the unwinding machine 3, the coil 1 to the unwinding machine 3 is
In addition to the coil car 19 shown in FIG. 10, coil transport equipment such as a walking beam type coil transport conveyor or a combination of general coil transport equipment and a crane is required as transport equipment. Therefore,
There is a problem in that the area occupied by the coil loading equipment, which is the input equipment in the continuous processing equipment for metal strips, becomes larger than the entire equipment, making the entire equipment longer. Therefore, the area efficiency of the continuous processing equipment will be reduced.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned conventional problems, and has a relatively simple equipment configuration, which can improve area efficiency and improve productivity. The purpose is to provide a method for inserting a coil into a machine.

[Means to solve the problem]

The present invention provides a method for inserting a coil into a mandrel of an entry-side unwinding machine of a continuous processing facility for metal strips, in which a coil carrying-in device is provided that extends in a direction parallel to the axis of the mandrel. A coil is carried into a predetermined position so that the inner diameter hole of the coil is parallel to the axial direction of the mandrel, and a coil outlet is set for the carried coil so that it coincides with the coil unwinding direction of the unwinding machine. The above object is achieved by holding the coil outlet, and carrying and inserting the coil to the mandrel while holding the coil outlet.

[Effect]

In the present invention, the coil is placed in a predetermined position of a coil loading device installed in a direction parallel to the axis of the mandrel of the entry-side unwinding machine so that the inner diameter hole of the coil is parallel to the axis of the mandrel. The coil is brought in, and the coil is unwound so as to match the coil unwinding direction of the unwinding section, this coil unwinding section is held, and the coil is transported to the mandrel while holding this coil unwinding section. I'm trying to insert it. Therefore, the coil can be unwound before being carried into the unwinding device. As a result, unlike the input side equipment of a conventional continuous processing facility equipped with one unwinding machine, the ash removal of the preceding coil is performed after the next coil is inserted and the coil is unwound while the preceding coil is being unwound. can be completed. Therefore, the time required for inputting information can be shortened, and productivity can be improved. In addition, productivity can be improved (there is no need to install two unwinding machines as in the conventional method, equipment costs can be reduced, and the installation area can be reduced).

【Example】

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, this embodiment is a coil loading device for inserting a coil 22 into a mandrel 21 of an inlet unwinding machine 20 of a continuous processing facility for metal strips, in a direction parallel to the axis of the mandrel 21. a coil conveying device 24 installed in the coil conveying device 24, and a coil extracting device 26 installed in the coil conveying device 24, which slightly rewinds the tip of the coil 22 conveyed by the coil conveying device 24 and extracts the coil. When the coil 22 drawn out by this coil feeding device 26 is transported, the drawn out coil 22
A coil outlet holding device 28 is provided for holding the tip of the coil. The coil transfer device 14 includes a fixed skid 30 on which a coil 22 is placed, which is transferred from a coil yard (not shown) by a transfer crane, and a fixed skid 30 that transfers the coil 22 placed on the fixed skid 30 in the direction of the mandrel 21. It is composed of a coil car 32. The coil car 32 has a lid 34 that lifts the coil 22 placed on the fixed skid 30 and lowers the coil 22 when the coil 22 is positioned on the cradle roll 36 or the mandrel 21. It is equipped with As shown in FIG. 2, the coil delivery device 26 is connected to a pair of left and right fixed skids 30 of the coil conveying device 24.
A pair of left and right cradle rolls 36 are installed approximately at the center in the coil conveying direction of the fixed skid 30 with their axial directions matching the longitudinal direction of the fixed skid 30, and a motor (not shown) for rotationally driving the cradle rolls 36; A guide table 38 that slides on the circumferential surface of the coil 22 placed on the cradle roll 36 and rotated by the cradle roll 36, and guides the tip of the coil 22 to be slightly unwound.
and air cylinders 40 and 42 positioned so that the tip of the guide table 38 is in contact with the circumferential surface of the coil 22 on the cradle roll 36. As shown in FIG. 2, the coil outlet holding device 28 includes a magnetic chuck 44 that magnetically attracts and holds the tip of the coil 22 that has been extracted by the coil outlet device 26, and a magnetic chuck 44. and a guide device 46 for guiding the movement of the coil in the coil conveying direction of the coil conveying device 24. Note that, instead of the magnetic chuck 44, a suction type suction device, a clamp, or the like may be used to hold the outlet portion of the coil 22. The guide device 46 includes a conveyor beam 48 as a guide rail arranged in the longitudinal direction of the fixed skid 30;
A guide member 50 is installed on the transport beam 4.8 so as to be movable in the longitudinal direction of the transport beam 48, an air cylinder 52 that holds the magnetic chuck 44 movably in the vertical direction on the guide member 50, and an air cylinder 52 that holds the magnetic chuck 44 movably in the vertical direction. A guide member 53 is provided. Next, the operation of this embodiment will be explained. The coil 22 placed on the fixed skid 30 is conveyed by the coil car 32 to a cradle roll 36 installed approximately in the longitudinal center of the fixed skid 30 . This coil 22 is transported by operating a lifter 32 provided in a coil car 34 to the fixed skid 3.
This is done by lifting the coil 22 from zero. The coil 22 placed on the cradle roll 36 is rotationally driven by the cradle roll 36. Also, the air cylinders 40 and 42 of the coil outlet device 26 operate to move the tip of the guide table 38 to the cradle roll 36.
It is brought into sliding contact with the circumferential surface of the upper coil 22. Since the coil 22 is rotationally driven by the cradle roll 36, when the tip of the coil 22 is positioned at the tip of the guide table 38, the tip of the coil 22 is guided by the guide table 38 and is slightly unwound. Messed up. The tip of the coil 22 that has been exposed in this way is held by the magnetic chuck 44 of the coil outlet holding device 28 . When it is confirmed that the protruding end of the coil 22 is held by the magnetic chuck 44, the cover 34 of the coil car 32 is activated to lift the coil 22 on the cradle roll 36 upward. After confirming that the coil 22 is lifted by the lifter 34, the coil car 32 is moved toward the unwinding machine 20, and the coil car 32 is moved toward the unwinding machine 20.
The upper coil 22 is transferred to the unwinding freeze 20. This rewind machine 2
0, the lifter 34 is activated and the coil 22 is lifted to a position where the inner diameter hole of the coil 22 being transported matches the mandrel 21 of the coil unwinding machine 20. Even when the coil car 32 transports the coil, the protruding tip of the coil 22 is held by the magnetic chuck 44 of the coil outlet holding device 28, and the coil 22 is unwound with the protruding portion held. Return! ! It will be inserted into the mandrel 21 in 20. Hereinafter, while the coil 22 inserted into the unwinding machine 20 is unwinding, the same process is repeated, and the next coil 22 is exposed and inserted into the mandrel 21 of the unwinding machine 20 in the same way. Become. According to this embodiment, while the previous coil 22 is being unwound by the unwinding machine 20, the next coil 22 is brought out while the next coil 22 is being conveyed. Even in the case of equipment, it is possible to eliminate the time loss required for intervention and improve productivity. Further, by conveying the coil 22 by the coil conveying device 24 extending in the axial direction of the mandrel 21 of the unwinding machine 20, the structure of the coil conveying device 24 itself can be simplified. Moreover, it is no longer necessary to provide two types of coil conveyance devices as in the past, and one
Further processing equipment can be made compact. Therefore, the area efficiency of the equipment can be improved. In addition, since the coil conveying device 24 itself is a piece of equipment, even if the method of the present invention is applied to old equipment, it can be easily modified. In the above embodiment, the tip of the coil 22 is extracted while rotating the coil 22 on the cradle roll 36 of the fixed skid 30, and the coil 22 after the extraction is directly inserted into the mandrel 21 of the unwinding machine 20 by the coil car 32. However, the present invention is not limited thereto; for example, as shown in FIGS. 3 and 4,
The tip of the coil 22 is drawn out on a cradle roll 54 provided on a fixed skid 52, and the coil 22 that has been drawn out is transferred to a coil car 32 by a walking beam 56, and is unwound 1a20 by this coil car 32. Alternatively, the coil 22 may be inserted into the coil 22. Note that, when the coil 22 that has been pulled out by the walking beam 56 and the coil car 32 is transported, the leading part of the coil 22 is held by the coil leading part holding device 28 . The walking beam 56 includes, for example, the fixed skid 52, a pedestal 60 provided between the fixed skid 52 and moved by a moving cylinder 58, and a lift cylinder 62 and a lift link 6 mounted on the pedestal 60.
4, the walking beam body 6 is vertically movable.
It consists of 6. Further, in the above embodiment, when inserting the coil 22 into the mandrel 21 of the rewind R20, the height position of the coil 22 is adjusted just before the rewind machine 20 in order to match the inner diameter holes of the mandrel 21 and the coil 22. Coil car 32 lifter 3
4, the present invention is not limited to this, and the height of the coil 12 may be adjusted at other positions.

【Effect of the invention】

As explained above, according to the present invention, productivity can be improved when coils are unwound and continuously processed using a single unwinding machine, and the equipment configuration can be made compact. have an effect.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the installation configuration of coil loading equipment for carrying out the method for pushing coils into an unwinding machine according to the present invention;
The figures are an enlarged view taken along the line ■-■ in Figure 1, Figure 3 is a plan view showing the overall configuration of another embodiment, Figure 4 is a side view showing the overall configuration of the same embodiment, and Figure 5. 6 is a side view showing a conventional tandem mill facility, FIG. 6 is a plan view showing the same conventional coil loading facility, FIG. 7 is a plan view showing another conventional coil loading facility, and FIGS. FIG. 10 is a side view showing a conventional pick-out device. 20... Rewinding machine, 21... Mandrel, 22... Coil, 24... Coil conveying device, 26... Coil outlet device, 28... Coil outlet holding device. Agent Kei Matsuyama Yutaka Ya Theory Figure 1 Figure 2 Figure 3 Figure 4 Figure 7 Figure 8

Claims (1)

[Claims] (1) In a method for inserting a coil into a mandrel of an entry-side unwinding machine of continuous processing equipment for metal strips, a coil loading device extending in a direction parallel to the axis of the mandrel has a predetermined position. A coil is carried into the position so that the inner diameter hole of the coil is parallel to the axial direction of the mandrel, and the coil is unrolled so as to match the coil unwinding direction of the unwinding machine. A method for inserting a coil into an unwinding machine, which comprises holding this coil outlet part, and transporting and inserting the coil to a mandrel while holding this coil outlet part.